4 Nov
2011
4 Nov
'11
12:59 p.m.
Seems like the NAT traversal is just broken.
just some basic rules:
- Call fix_nated_contact only for request from the clients (although it
shouldn't hurt if you call it for all requests)
- Whenever a message contains a session description call
force_rtp_proxy(). Make sure to provide proper flags regarding the
direction of the message. E.g. start rtpproxy listening to internal and
external IP and provide the flags "ie" for requests from
internal->external and "ei" for requests from external to internal.
regards
klaus
On 04.11.2011 08:51, Sammy Govind wrote:
Thanks Alex for actually finding the thread for me-
I'm reading these
thoroughly and let me try these.
Klaus, mhome=1 is a good tip let me try it now: The problem is that when
I set-up the scenario as I mentioned using Private IPs the end user
starts sending the media to the private IP of asterisk (which
is of-course not found anywhere near UAC) - The Asterisk Server on the
other hand sends media to the Public IP of the Client(fixed by the NAT
route and RTPproxy route automatically.)
What I've figured out theoretically is that i need to do the NAT address
fixation in on-reply route from Asterisk servers. By fixing the c=
header in Kamailio for the 200OK back to the client will make the Client
software send media to the Kamailio/RTPproxy port and not on some
private IP.
I hope I made some sense in what I wrote, do let me know if
any clarification is required.
I'm just this one step away from publishing the setup on blog
to benefit the community so any help from experts will be much much
appreciated.
Best Regards,
Sammy
On Fri, Nov 4, 2011 at 12:27 PM, Alex Balashov
<abalashov(a)evaristesys.com <mailto:abalashov@evaristesys.com>> wrote:
The fundamental complications that often arise in such a setup are
summarised in these threads:
http://lists.sip-router.org/__pipermail/sr-users/2010-__October/065669.html
<http://lists.sip-router.org/pipermail/sr-users/2010-October/065669.html>
http://lists.sip-router.org/__pipermail/sr-users/2011-__September/069975.ht…
<http://lists.sip-router.org/pipermail/sr-users/2011-September/069975.html>
http://lists.sip-router.org/__pipermail/sr-users/2011-__September/070029.ht…
<http://lists.sip-router.org/pipermail/sr-users/2011-September/070029.html>
--
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670 <tel:%2B1-678-954-0670>
Fax: +1-404-961-1892 <tel:%2B1-404-961-1892>
Web: http://www.evaristesys.com/
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